Purpose: Determine relationship between velocity and Force (centripetal), mass (stopper) and radius.


Experiments:

1)Hold radius and mass constant FORCE vs. VELOCITY

2)Hold force and mass constant RADIUS vs. VELOCITY

3)Hold force and radius constant MASS vs VELOCITY



Data:

1) Radius (m): _
Mass (kg): __
Force (N)
Time for 10 rotations

7+ trials

2) Force (N): _
Mass (kg):
Radius (m)
Time for 10 rotations

7+ trials

3) Force (N): _
Radius (m): _
Mass (kg)
Time for 10 rotations

5+ trials


Computer Spreadsheet:
1) Force -- Time for 10 rotations -- Period (Time/rotation) -- Circumference (2 pi r) -- Velocity (Circumference/Period)


Graph- Force vs. Velocity (x vs. y)

2 and 3) Complete the same expect put in radius or mass data.


Print spreadsheets and graphs - put on 1 sheet if possible


CONCLUSION
  1. YOUR LAB DATA
    1. Graph Force vs. Velocity from your group.
    2. Print graph and place in lab notebook.
    3. State the relationship from your experiment.
    4. Write Conclusion - Purpose, results, discussion, errors.
EXTENTION FOR GREEN SHEET
2. Use the following data to make Excel data tables and Graphs to be submitted on T-Drive and write a general graph on Green sheet.
Force (N)
Velocity (Cir/Period)


0.15
1.22
0.3
1.73
0.45
2.12
0.6
2.45
0.75
2.74
0.9
3.00
1.05
3.24
1.2
3.46
1.35
3.67
a. Graph Force vs. Velocity (Write simple graph in green sheet and also put on T-Drive with 6 other graphs)
b. State the relationship (Green sheet)
c. Graph Force vs. V^2 (T-Drive)
d. State the relationship and write the formula (Green sheet)
Mass (kg)
velocity (m/s)


0.1
2.00
0.2
1.41
0.35
1.07
0.5
0.89
0.75
0.73

a. Graph Mass vs. Velocity (T-Drive)
b. State the relationship (Green sheet)
c. Graph 1/mass vs. V^2 (T-Drive)
d. State the relationship and write the formula (Green sheet)
Radius (m)
velocity (m/s)
0.1
1.58
0.15
1.94
0.2
2.24
0.3
2.74
0.4
3.16
0.5
3.54
0.6
3.87

a. Graph Radius vs. Velocity (Write simple graph in green sheet and also put on T-Drive with 6 other graphs)
b. State the relationship (Green sheet )
c. Graph Radium vs. V^2 (T-Drive)
d. State the relationship and write the formula (Green sheet)